Dell OptiPlex GX1 Dell OptiPlex GX1/GX1p Managed PC and OptiPlex NX1 Net PC S - Page 26

The OptiPlex NX1 computer has one PCI expansion-card connector on the riser board (see Figure 1-7). The computer automatically assigns any required memory space, IRQ lines, and DMA channels to an installed PCI expansion card during system start-up. The Wakeup On LAN power connector on the riser board supports an optional NIC expansion card with Wakeup On LAN capability. The power LED lights up when DC power is applied to the riser board. power LED Wakeup On LAN power connector PCI1 connector The OptiPlex GX1 low-profile computers have three expansion-card slots. The riser board has two ISA expansion-card connectors and two PCI expansion-card connectors. One PCI expansion-card connector and one ISA expansion-card connector share a single expansion-card slot, resulting in a total of three expansion-card slots (see Figure 1-8). The low-profile computers have a passive riser board, with no PCI-to-PCI bridge. The riser board includes the P1 connector (for connecting the NIC to the riser board cable) and an LED (see Figure 1-8). If the LED is on, the riser board is receiving power; if off, the riser board is not receiving power. LED ISA2 connector HDLED connector P1 connector ISA1 connector PCI2 connector PCI1 connector The OptiPlex GX1/GX1p midsize computers have five expansion-card slots. The riser board for the GX1 is offered in two options. The GX1p uses the option 2 riser board. Option 1 is a passive riser board, with no PCI-to-PCI bridge. Option 1 has three ISA expansion-card connectors and three PCI expansion-card connectors. One PCI expansion-card connector and one ISA expansion-card connector share a single expansion-card slot, resulting in a 1-14